// Copyright 2017 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef V8_DEBUG_DEBUG_SCOPE_ITERATOR_H_
#define V8_DEBUG_DEBUG_SCOPE_ITERATOR_H_

#include "src/debug/debug-frames.h"
#include "src/debug/debug-interface.h"
#include "src/debug/debug-scopes.h"
#include "src/frames.h"

namespace v8 {
namespace internal {

    class DebugScopeIterator final : public debug::ScopeIterator {
    public:
        DebugScopeIterator(Isolate* isolate, FrameInspector* frame_inspector);
        DebugScopeIterator(Isolate* isolate, Handle<JSFunction> function);
        DebugScopeIterator(Isolate* isolate, Handle<JSGeneratorObject> generator);

        bool Done() override;
        void Advance() override;
        ScopeType GetType() override;
        v8::Local<v8::Object> GetObject() override;
        v8::Local<v8::Value> GetFunctionDebugName() override;
        int GetScriptId() override;
        bool HasLocationInfo() override;
        debug::Location GetStartLocation() override;
        debug::Location GetEndLocation() override;

        bool SetVariableValue(v8::Local<v8::String> name,
            v8::Local<v8::Value> value) override;

    private:
        bool ShouldIgnore();

        v8::internal::ScopeIterator iterator_;
    };

    class DebugWasmScopeIterator final : public debug::ScopeIterator {
    public:
        DebugWasmScopeIterator(Isolate* isolate, StandardFrame* frame,
            int inlined_frame_index);

        bool Done() override;
        void Advance() override;
        ScopeType GetType() override;
        v8::Local<v8::Object> GetObject() override;
        v8::Local<v8::Value> GetFunctionDebugName() override;
        int GetScriptId() override;
        bool HasLocationInfo() override;
        debug::Location GetStartLocation() override;
        debug::Location GetEndLocation() override;

        bool SetVariableValue(v8::Local<v8::String> name,
            v8::Local<v8::Value> value) override;

    private:
        Isolate* isolate_;
        StandardFrame* frame_;
        int inlined_frame_index_;
        ScopeType type_;
    };
} // namespace internal
} // namespace v8

#endif // V8_DEBUG_DEBUG_SCOPE_ITERATOR_H_
